first commit

src/core/data.ts

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+import type { SingleWaveformData, WaveformData, WaveformPoint, NormalizedWaveformSeries } from '../types'
+
+/**
+ * 规范化单波形数据
+ * @param data 输入数据（samples 或 points 格式）
+ * @returns 规范化后的点数组
+ */
+export function normalizeWaveformData(data: SingleWaveformData): WaveformPoint[] {
+  if (data.kind === 'samples') {
+    if (!Number.isFinite(data.sampleRate) || data.sampleRate <= 0) return []
+
+    const startTime = Number.isFinite(data.startTime) ? (data.startTime ?? 0) : 0
+    return data.values.flatMap((value, index) =>
+      Number.isFinite(value) ? [{ x: startTime + index / data.sampleRate, y: value }] : [],
+    )
+  }
+
+  return data.points
+    .filter((point) => Number.isFinite(point.x) && Number.isFinite(point.y))
+    .map((point) => ({ ...point }))
+    .sort((left, right) => left.x - right.x)
+}
+
+/**
+ * 规范化波形系列数据
+ * @param data 输入数据（单波形或多通道）
+ * @returns 规范化后的系列数组
+ */
+export function normalizeWaveformSeries(data: WaveformData): NormalizedWaveformSeries[] {
+  if (data.kind !== 'series') {
+    const points = normalizeWaveformData(data)
+    return points.length > 0 ? [{ id: 'series-0', name: '', points }] : []
+  }
+
+  const usedIds = new Set<string>()
+
+  return data.series
+    .map((series, index) => {
+      const id = series.id?.trim() || `series-${index}`
+
+      // 确保 ID 唯一，如果重复则添加后缀
+      let uniqueId = id
+      let suffix = 1
+      while (usedIds.has(uniqueId)) {
+        uniqueId = `${id}-${suffix}`
+        suffix++
+      }
+      usedIds.add(uniqueId)
+
+      return {
+        id: uniqueId,
+        name: series.name,
+        unit: series.unit,
+        color: series.color,
+        points: normalizeWaveformData(series.data),
+      }
+    })
+    .filter((series) => series.points.length > 0)
+}